Capitalism is war; socialism is peace.

Imperialism is not the creation of any one or any one group of states.

Consider well this fact: As long as the German people does not arise and use force directed by its own will, the assassination of the people will continue.

Passive fatalism can never be the role of a revolutionary party, like the Social Democracy.

To the socialist no nation is free whose national existence is based upon the enslavement of another people, for to him colonial peoples, too, are peoples, and, as such, parts of the national state.

The Russian revolution was to an unprecedented degree the cause of the proletariat of the whole world becoming more revolutionary.

The failure of the Russian Socialist Republic will be the defeat of the proletariat of the whole world.